<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <div ref="echartsDom" style="width: 600px; height: 400px"></div>
    </el-card>
  </div>
</template>
<script>
import * as echarts from 'echarts'
import _ from 'loadsh';
export default {
  data() {
    return {
      options: {
        title: {
          text: '用户来源',
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3',
            },
          },
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true,
        },
        xAxis: [
          {
            boundaryGap: false,
          },
        ],
        yAxis: [
          {
            type: 'value',
          },
        ],
      },
    }
  },
  async mounted() {
    // 一定要在dom初始化完毕后进行 echarts.init
    // 基于准备好的dom，初始化echarts实例
    const {data: res } = await this.$http.get('report');
    if(!res) return this.$message.error('获取数据失败');
    console.log(res)
    this.$nextTick(function () {
      var dom = this.$refs.echartsDom
      debugger
      if (dom) {
        var myChart = echarts.init(dom)
        // 指定图表的配置项和数据
        const result = _.merge(res.data, this.options)
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result)
      }
    })
  },
}
</script>
<style lang="less" scoped>
</style>
